The square root of a number x is a number y such that y² = x and √x = y.

For example, the square root of 9 is 3, because 3² = 9 and √9 = 3."

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Pre algebra • Algebra

The square root of a number x is a number y such that y² = x and √x = y.

For example, the square root of 9 is 3, because 3² = 9 and √9 = 3."